TX DMV Vehicle Operation and Maintenance 2 — Questions and Answers
Question 1: What does the oil pressure warning light indicate when it illuminates while driving?
- The oil needs to be changed soon
- The engine oil pressure is critically low (Correct answer)
- The oil filter needs replacement
- The engine is overheating
Correct answer: The engine oil pressure is critically low
The oil pressure warning light means engine oil pressure has dropped dangerously low — stop driving immediately to avoid severe engine damage.
Question 2: How often should you check your tire pressure?
- Only when a tire looks flat
- Once a year during inspection
- At least once a month and before long trips (Correct answer)
- Every 10,000 miles
Correct answer: At least once a month and before long trips
Tire pressure should be checked at least monthly and before long trips since tires lose pressure naturally and temperature changes affect pressure.
Question 3: What is the minimum legal tire tread depth required in Texas?
- 1/16 inch
- 2/32 inch (Correct answer)
- 1/8 inch
- 4/32 inch
Correct answer: 2/32 inch
Texas law requires tires to have at least 2/32 inch of tread depth to be considered legal for road use.
Question 4: When should you replace your windshield wipers?
- Only when they stop working completely
- Every 5 years regardless of condition
- When they leave streaks, skip, or squeak during use (Correct answer)
- Every 50,000 miles
Correct answer: When they leave streaks, skip, or squeak during use
Wipers should be replaced when they leave streaks, skip across the windshield, or squeak, all of which indicate deteriorated rubber.
Question 5: What does a temperature gauge reading in the red zone indicate?
- The heater is working at full capacity
- The engine is overheating (Correct answer)
- The coolant level is full and normal
- The thermostat is functioning correctly
Correct answer: The engine is overheating
A temperature gauge in the red zone indicates the engine is overheating, requiring immediate action to prevent serious damage.
Question 6: How should you properly check your engine oil level?
- Check it immediately after a long drive while the engine is warm
- Check it while the engine is running
- Check it when the engine is cold or has sat off for several minutes (Correct answer)
- Only a licensed mechanic can properly check the oil level
Correct answer: Check it when the engine is cold or has sat off for several minutes
Oil should be checked when the engine is cool or has been off for a few minutes so oil drains back into the pan for an accurate dipstick reading.
Question 7: What is the primary purpose of coolant (antifreeze) in your vehicle?
- To lubricate the engine's moving parts
- To regulate fuel efficiency and mileage
- To regulate engine temperature and prevent both freezing and overheating (Correct answer)
- To clean fuel injectors and remove deposits
Correct answer: To regulate engine temperature and prevent both freezing and overheating
Coolant regulates engine temperature by carrying heat away from the engine and preventing the water in the cooling system from freezing or boiling.
TX DMV Vehicle Operation and Maintenance 2
What does the oil pressure warning light indicate when it illuminates while driving?